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Alcohol Blood Testing

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Alcohol blood tests detect and measure alcohol use. Learn about types of alcohol blood tests, how testing is conducted, and how to understand your test results.
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Osmolality and Osmolal Gap

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Osmolality measures the amount of dissolved substances (e.g., sodium, potassium) in blood and urine. An osmolality test and calculated osmolal gap help determine if someone has ingested a toxin or has a water imbalance.
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Drug Testing

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Drug testing detects evidence of drug use. Learn about types of drug tests, when drug testing is used, and interpreting drug test results.
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Hepatitis Testing

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Hepatitis is inflammation of the liver. Learn more about types of hepatitis and tests that may be used to diagnose, evaluate, and monitor this condition.
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Acidosis and Alkalosis

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The body usually maintains its acid-base balance, but sometimes things go wrong. Acidosis is when body fluids are too acidic, and alkalosis occurs when body fluids are too alkaline.
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Editorial Policy

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The mission of Testing.com is to provide a comprehensive, accurate, dynamic, and up-to-date website to inform the public about laboratory testing. The scientific content is developed and updated in accordance with established editorial policies.
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